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Quiz: Linux for DevOps

5 questionsNo time limitPass: 60%+10 XP on first pass

The Linux skills every DevOps and backend engineer uses on servers: navigating files, permissions (chmod 755 explained), processes and services with systemd, SSH, and analysing real web-server logs with grep, awk, sort and uniq.

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  1. Question 1

    What is the octal value of rw-r--r--?

  2. Question 2

    Which permission is right for a .env file containing secrets?

  3. Question 3

    Which command follows a service's logs live when it runs under systemd?

  4. Question 4

    In the sample log, which IP made the most requests?

  5. Question 5

    Which sshd_config settings are part of basic server hardening?